Skip to content
Heist/ feed
Back to feed
Low

Wasmtime vulnerable to panic when using a dropped extenref-typed element segment

Type: advisorySources: OSV

wasmtime is a runtime for WebAssembly. The 19.0.0 release of Wasmtime contains a regression introduced during its development which can lead to a guest WebAssembly module causing a panic in the host runtime. A valid WebAssembly module, when executed at runtime, may cause this panic. This vulnerability has been patched in version 19.0.1.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2024-30266
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 01:20 UTC · Revision 1

Source evidence

Wasmtime vulnerable to panic when using a dropped extenref-typed element segment

core-osv · Original source

Published 4 Apr 2024, 15:42 UTC

wasmtime is a runtime for WebAssembly. The 19.0.0 release of Wasmtime contains a regression introduced during its development which can lead to a guest WebAssembly module causing a panic in the host runtime. A valid WebAssembly module, when executed at runtime, may cause this panic. This vulnerability has been patched in version 19.0.1.

osv:CVE-2024-30266
Complete source record
{
  "id": "dc08330da9cc0533ef8403e9a90383d2247a5d1355f8f4d9b9fce2577feb8844",
  "url": "https://osv.dev/vulnerability/CVE-2024-30266",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Wasmtime vulnerable to panic when using a dropped extenref-typed element segment",
    "summary": "wasmtime is a runtime for WebAssembly. The 19.0.0 release of Wasmtime contains a regression introduced during its development which can lead to a guest WebAssembly module causing a panic in the host runtime. A valid WebAssembly module, when executed at runtime, may cause this panic. This vulnerability has been patched in version 19.0.1.",
    "evidence": "osv:CVE-2024-30266",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2024-30266",
      "aliases": [
        "CVE-2024-30266",
        "GHSA-75hq-h6g9-h4q5",
        "PYSEC-2024-327",
        "RUSTSEC-2024-0441"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/bytecodealliance/wasmtime",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6e0abd75440159e57e9f1c59a62dbc691eff18a4"
                },
                {
                  "fixed": "7f57d0bb0948fa56cc950278d0db230ed10e8664"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "= 19.0.0"
                      },
                      {
                        "last_affected": "= 19.0.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "fixed": "7f57d0bb0948fa56cc950278d0db230ed10e8664"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "19.0.0",
            "= 19.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-30266.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.688881338Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/30xxx/CVE-2024-30266.json",
        "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-75hq-h6g9-h4q5",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-30266",
        "https://github.com/bytecodealliance/wasmtime/issues/8281",
        "https://github.com/bytecodealliance/wasmtime/commit/7f57d0bb0948fa56cc950278d0db230ed10e8664",
        "https://github.com/bytecodealliance/wasmtime/pull/8018",
        "https://github.com/bytecodealliance/wasmtime/pull/8283"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-843"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/30xxx/CVE-2024-30266.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-30266",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 516934,
  "published_at": "2024-04-04T15:42:00.2+00:00"
}